Sökning: "seed dressing"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden seed dressing.

  1. 1. Neonicotinoids and honeybee health : the effect of the neonicotinoid clothianidin, applied as a seed dressing in Brassica napus, on pathogen and parasite prevalence and quantities in free-foraging adult honeybees (Apis mellifera)

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Julia Goss; [2014]
    Nyckelord :honeybees; pathogens; parasites; virus; Nosema; Varroa; neonicotinoids; clothianidin;

    Sammanfattning : Sub-lethal doses of neonicotinoids have been shown to negatively impact the health of honeybees. However, most studies to date have exposed bees only artificially to these pesticides under laboratory conditions. LÄS MER

  3. 2. The effect of combining two biological control microbes on seed and root colonization

    Master-uppsats, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Jinhui Wang; [2012]
    Nyckelord :Biological control; Root Colonization; Clonostachys rosea; Pseudomonas chlororaphis;

    Sammanfattning : Clonostachys rosea strain IK726 and Pseudomonas chlororaphis strain MA342 are two promising biocontrol microbes which both has various biocontrol mechanisms to control many seed and soil-borne plant diseases. Because a potential additive effect may exist between these two biocontrol microbes, like an expanded antagonistic spectrum and enhanced persistence of biocontrol effect, we expected to get a more competitive biocontrol with a mixture of IK726 and MA342. LÄS MER

  4. 3. Möjligheter till ökat utnyttjande av fosfor genom grödan med mineralgödselmedel

    Kandidat-uppsats, SLU/Dept. of Soil and Environment

    Författare :Lisa Ehde; [2010]
    Nyckelord :fosforeffektivitet; mineralgödsel; fosforutnyttjande; fosforkemi; rotupptag;

    Sammanfattning : The objective of this thesis is to explore opportunities to enhance the phosphorus use efficiencyof inorganic fertilizers in crop production, with techniques available today and in thefuture. Phosphorus is a finite resource of declining quality; therefore a phosphorus use efficiencyin crop production of only 15-30 % is unacceptable. LÄS MER

  5. 4. Svampar associerade med raps : betydelse för uppkomst och grödetablering

    L3-uppsats, SLU/Dept. of Forest Mycology and Plant Pathology

    Författare :Caroline Dahlberg; [2009]
    Nyckelord :oljeväxter; grödetablering; patogena svampar;

    Sammanfattning : Oilseed rape is an important crop in Sweden and is grown on about 90000 ha today. The interest in oil seed pro-duction is increasing because of growing demand and high prices for oil seed both in Sweden and Europe. However, an increased intensity in the oil seed production can bring higher risk of yield losses due to fungal diseases. LÄS MER

  7. 5. Environmental fate of pesticides used as seed dressing : transport behaviour and occurrence in watercourses

    L3-uppsats, SLU/Dept. of Soil Sciences

    Författare :Åsa Kuhlau; [2008]
    Nyckelord :seed dressing; pesticide; leaching; water; environment; monitoring;

    Sammanfattning : Residues of chemical substances contained in pesticides (plant protection products) have been found in streams in four agricultural areas in Sweden despite no reported direct use. This report investigated whether these residues originated from seed dressing preparations used in the areas or some other source. LÄS MER